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RISParameter Selection in Finite-Element-Model Updating by Global Sensitivity Analysis Using Gaussian Process Metamodel
Publisher: American Society of Civil Engineers
Abstract: Parameter selection is a key step in finite-element-model updating (FEMU) because it determines whether the task of FEMU is successful or not. The as-built engineering structures are inevitably subject to many sources of ...
A New Approach for Interval Dynamic Analysis of Train-Bridge System Based on Bayesian Optimization
Publisher: ASCE
Abstract: A train-bridge system (TBS) is inevitably subjected to parameter uncertainty, which leads to variability in its dynamic responses. In practice, it is difficult to characterize parameter uncertainty using precise probability ...
Binary Segmentation for Structural Condition Classification Using Structural Health Monitoring Data
Publisher: American Society of Civil Engineers
Abstract: Structural health monitoring (SHM) is the process of conducting structural condition diagnosis and prognosis based on appropriate analyses of in situ measurement data. Direct assessment of structural condition using time ...
Load-Effect Separation of a Large-Span Prestressed Structure Based on an Enhanced EEMD-ICA Methodology
Publisher: ASCE
Abstract: Prestressed structures have gained popularity in large-span buildings due to their great spanning capacity and light self-weights. This kind of structure is normally subjected to multiple types of loads, such as temperature ...
Statistical Framework for Sensitivity Analysis of Structural Dynamic Characteristics
Publisher: American Society of Civil Engineers
Abstract: The uncertainty involved in the structural parameters inevitably leads to uncertainty in predicting the resulting structural dynamic characteristics, and this relationship is important to quantify. There is a large volume ...
Bending Stiffness Identification of Continuous Girder Bridges Using Multiple Rotation Influence Lines
Publisher: American Society of Civil Engineers
Abstract: Bridge bending stiffness, related to bridge material and geometric properties, is considered an important indicator of bridge performance. Accurately identifying bridge bending stiffness is essential for evaluating the ...
An Efficient Three-Dimensional Point Cloud Segmentation Method for the Dimensional Quality Assessment of Precast Concrete Components Utilizing Multiview Information Fusion
Publisher: American Society of Civil Engineers
Abstract: Significant discrepancies between the actual and designed dimensions of precast concrete (PC) components can result in construction delays and extensive rework, highlighting the imperative for dimensional quality assessment ...
Investigation of Temperature Effects on Steel-Truss Bridge Based on Long-Term Monitoring Data: Case Study
Publisher: ASCE
Abstract: The time-varying average and differential temperatures may significantly change the performance of steel truss bridges, which may increase the difficulties for bridge design, construction, and maintenance. Because hundreds ...
Prediction of Crosswind-Induced Derailment of Train–Rail–Bridge System by Vector Mechanics
Publisher: ASCE
Abstract: A train–rail–bridge (TRB) interaction model of vector mechanics (VM) is developed to predict the derailment of a train traveling over cable-supported bridges under crosswinds. The aerodynamic coefficients measured from the ...
Seismic Response of a Bridge Crossing a Canyon to Near-Fault Acceleration-Pulse Ground Motions
Publisher: ASCE
Abstract: Previous seismic events have shown that bridges are more susceptible to severe damage when subjected to near-fault ground motions. Near-fault ground motions usually possess obvious pulse-like features in their velocity ...